[Mailman-Developers] mailman and the web

[J C Lawrence]

On Sun, 18 Mar 2001 12:12:24 -0500 
Barry A Warsaw <barry@digicool.com> wrote:

> Mailman kills loops by adding an X-BeenThere: header with the list
> address as the value.  If it detects such a header on an incoming
> message, it throws a LoopError, which is currently defined to
> discard the message.  Not all mail loops will preserve
> X-BeenThere, but I think in practice it works pretty well.

Note that many MTAs also have their own loop detection.  Postfix for
instance hooks off Delivered-To:.

-- 
J C Lawrence                                       claw@kanga.nu
---------(*)                          http://www.kanga.nu/~claw/
--=| A man is as sane as he is dangerous to his environment |=--